58% (1974)

43% (1984)

50% (1982)

48% (1959)

0% (1996)

0% (1991)

55% (1974)

57% (1968)

66% (1964)

65% (1976)

70% (1981)

55% (1958)

50% (1982)

55% (1962)

62% (1976)

58% (1992)

50% (1964)

49% (1986)

0% (1965)

50% (1980)